WO2017179345A1 - Injecteur - Google Patents

Injecteur Download PDF

Info

Publication number
WO2017179345A1
WO2017179345A1 PCT/JP2017/009507 JP2017009507W WO2017179345A1 WO 2017179345 A1 WO2017179345 A1 WO 2017179345A1 JP 2017009507 W JP2017009507 W JP 2017009507W WO 2017179345 A1 WO2017179345 A1 WO 2017179345A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
stirring
injection
syringe
closing
Prior art date
Application number
PCT/JP2017/009507
Other languages
English (en)
Japanese (ja)
Inventor
根本　茂
内園　裕文
勝美 堤
Original Assignee
株式会社根本杏林堂
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社根本杏林堂 filed Critical 株式会社根本杏林堂
Priority to JP2018511931A priority Critical patent/JP6912068B2/ja
Publication of WO2017179345A1 publication Critical patent/WO2017179345A1/fr

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body

Definitions

  • the present invention relates to an injection device for injecting a chemical solution, and relates to an injection device capable of stirring the chemical solution in a syringe to be mounted.
  • a contrast medium made of a suspension as a chemical solution used for imaging by a medical imaging apparatus, for example, an ultrasonic diagnostic apparatus.
  • This contrast agent contains microbubbles or solid particles to scatter ultrasonic waves.
  • a syringe filled with the contrast medium is mounted on the injection device, and imaging is performed after the contrast medium is injected into the body of the subject.
  • the ultrasonic diagnostic apparatus captures an image of the inside of a body by analyzing ultrasonic waves that are incident on and reflected by microbubbles or solid particles.
  • separation may occur in the contrast agent after the syringe is mounted on the injection device, and the concentration of the content of the contrast agent may be biased.
  • Patent Document 1 discloses an injection apparatus including a holding unit that holds a syringe filled with a contrast agent, and a stirring unit that is connected to the holding unit and swings the holding unit.
  • a three-way cock is connected to the syringe held by the holding unit, and the injection device includes an installation portion for the three-way cock.
  • the injection device includes a lever driving unit that drives a switching lever of the three-way cock, and does not push out the contrast agent when the contrast agent channel is not opened.
  • an injection device includes a first drive unit that pushes out the first chemical solution from a first syringe filled with the first chemical solution, and a flow in a tube connected to the first syringe. It is characterized by comprising: a closing part for closing a passage; and a stirring unit for swinging the first syringe in a state where the closing part opens the flow path.
  • FIG. 1 is a schematic perspective view of an injection device (injector) 100 that is used when a body of a subject is imaged by a medical imaging apparatus, for example, an ultrasonic diagnostic apparatus.
  • an injection device 100 for injecting a chemical solution includes an injection head 1 on which a first syringe 91 and a second syringe 92 are mounted.
  • the injection device 100 includes a holding member 11 that holds the first syringe 91.
  • the holding member 11 is formed by aluminum die casting, but can also be formed by resin.
  • FIG. 1 shows a state in which the presser 21 advances the piston 914 of the first syringe 91 to the limit position, and the presser 61 advances the piston 924 of the second syringe 92 to the limit position.
  • the injection device 100 includes a holding unit 12 that holds the second syringe 92, and the holding unit 12 is provided on the front frame 15 of the injection head 1.
  • the injection head 1 is provided with a display unit 13 and an operation unit 14.
  • the display unit 13 displays the elapsed time from the start of injection, the injection amount, the injection speed, and the like.
  • the injection head 1 can also display such information on a portable display or a tablet computer.
  • These devices are wirelessly connected to the injection head 1 according to a standard such as Bluetooth (registered trademark) or Wi-Fi, and can be replaced with the display unit 13 and the operation unit 14 of the injection head 1.
  • a touch panel may be provided on the injection head 1.
  • the first syringe 91 is filled with a contrast agent which is a suspension as a first chemical solution.
  • the second syringe 92 is filled with physiological saline as the second chemical solution.
  • These chemical solutions may be manually filled into the first syringe 91 or the second syringe 92, or may be filled into the first syringe 91 or the second syringe 92 with the injection device 100 or the filling device. Further, the first syringe 91 and the second syringe 92 may be prefilled syringes.
  • the first tube 103 is connected to the tip of the first syringe 91. Further, a guide portion 106 for guiding the first tube 103 is formed in the front frame 15 of the injection head 1.
  • This guide part 106 consists of a substantially U-shaped groove
  • the second tube 104 is connected to the tip of the second syringe 92.
  • the second tube 104 is connected to the first tube 103 via a T-shaped connector.
  • the third tube 105 is connected to the first syringe 91 via the first tube 103.
  • the distal end of the third tube 105 is connected to a catheter or the like.
  • the T-shaped connector can be replaced with a connector having another shape such as a Y-shape, or a mixing device (for example, “SPIRAL FLOW” (registered trademark) manufactured by Nemoto Kyorindo Co., Ltd.).
  • a foot switch and a hand switch can be connected to the injection apparatus 100 by wire.
  • the operator can start the injection of the chemical liquid by operating the foot switch and the hand switch.
  • the foot switch and the hand switch may be wirelessly connected to the injection head 1.
  • another remote control device can be connected to the injection head 1 by wire or wirelessly.
  • the injection head 1 is connected to an external power source via an AC adapter (not shown). However, the injection head 1 can also incorporate a battery. Moreover, the injection head 1 may be mounted on a caster stand (not shown) or may be configured integrally with the caster stand. Furthermore, a ceiling suspension member can be provided, and the injection head 1 can be suspended from the ceiling via the ceiling suspension member.
  • FIG. 2 shows the inside of the injection head 1 with the upper frame and the lower frame removed.
  • the injection device 100 includes a first drive unit 2 that pushes out the first chemical solution from the first syringe 91 filled with the contrast agent that is the first chemical solution, and the first chemical solution in the first syringe 91.
  • a stirring unit 3 that swings the first syringe 91 via the holding member 11 is provided.
  • the injection device 100 includes a second drive unit 6 that pushes out the second chemical solution from the second syringe 92 filled with the second chemical solution.
  • the 1st drive part 2, the 2nd drive part 6, and the stirring unit 3 are accommodated in both flame
  • the first drive unit 2 presses the rear end of the mounted first syringe 91 (the rear end of the piston 914) to press the contrast agent from the first syringe 91, and the actuator that moves the presser 21 forward or backward 22.
  • the actuator 22 includes a feed screw nut, a feed screw shaft, a motor, a transmission mechanism that transmits rotation from the motor to the feed screw shaft, and a forward and backward rod (both not shown). Further, the first drive unit 2 has a presser pipe 23 connected to the rod of the actuator 22.
  • the presser 21 is fixed to the presser pipe 23.
  • the motor of the actuator 22 rotates forward with the presser 21 in contact with the rear end of the piston 914, the presser 21 pushes the piston 914 forward.
  • the piston 914 moves forward, the contrast medium in the first syringe 91 is pushed out, and the subject's subject is connected via the first tube 103, the T-shaped connector and the third tube 105 connected to the tip of the first syringe 91. Injected into the body.
  • the motor reverses the presser 21 can move backward and return to the original position.
  • the second drive unit 6 also has a presser 61 and an actuator 62.
  • the actuator 62 has the same structure as the actuator 22.
  • the presser 61 has a syringe hook 611 for fixing the rear end of the piston 924 to the presser 61. Then, when the presser 61 moves backward in a state where the rear end of the piston 924 is fixed to the presser 61, the piston 924 can be moved backward.
  • the presser 61 is fixed to the presser pipe 63. Then, when the motor of the actuator 62 rotates forward with the presser 61 in contact with the rear end of the piston 924, the presser 61 pushes the piston 924 forward. Thus, when the piston 924 advances, the physiological saline in the second syringe 92 is pushed out, and the subject is connected via the second tube 104, the T-shaped connector, and the third tube 105 connected to the tip of the second syringe 92. Injected into the body. On the other hand, when the motor rotates in the reverse direction, the presser 61 can move backward and the piston 924 can move backward.
  • the presser 21 and the presser 61 are both made of aluminum, but can be made of resin.
  • a groove portion 111 having a substantially U-shaped cross section for holding the body portion of the first syringe 91 is attached to the front end portion of the holding member 11 that holds the first syringe 91. Further, the holding member 11 has a flange groove portion 112 adjacent to the groove portion 111, and the flange of the first syringe 91 is inserted into the flange groove portion 112. Thereby, the holding member 11 holds the first syringe 91, and when the stirring unit 3 swings the holding member 11, the first syringe 91 swings together with the holding member 11.
  • the holding portion 12 that holds the second syringe 92 is provided with a flange groove portion 122 into which the flange of the second syringe 92 is inserted. Thereby, the holding unit 12 holds the second syringe 92.
  • FIGS. 3 and 4 shows the stirring unit 3 viewed from the upper rear side
  • FIG. 4 shows the transmission mechanism 33 viewed from the front side.
  • the stirring unit 3 includes a stirring motor 32 that drives the holding member 11 and a transmission mechanism 33 that transmits the rotational force from the stirring motor 32 to the holding member 11.
  • a stirring motor 32 a DC motor can be used.
  • the stirring unit 3 includes a swing detection unit 35 that detects the swing angle of the holding member 11.
  • the swing detection unit 35 is, for example, an optical slit sensor.
  • the transmission mechanism 33 includes a rotating member 124 (FIG. 4) that is rotatably attached to the fixed portion 134 via a needle bearing.
  • the holding member 11 is fixed to the rotating member 124 via a washer.
  • the transmission mechanism 33 includes a pulley 331 that rotates together with the output shaft of the stirring motor 32, a belt 332 that is wound around the pulley 331, and a pulley 333 that is wound around the belt 332 and connected to the rotating member 124.
  • the pulley 333 is fixed to the rotating member 124 with a screw through a washer.
  • the transmission mechanism 33 may have a gear instead of the pulley 331 and the belt 332.
  • a shield plate 34 having a slit of a predetermined angle is fixed to the pulley 333 of the transmission mechanism 33 with a screw. Then, the swing detection unit 35 detects the slit of the shielding plate 34 and detects that the holding member 11 swings by a predetermined angle. That is, the shielding plate 34 is fixed to the pulley 333 by screws, and the shielding plate 34 rotates together with the pulley 333 and the rotating member 124. Then, the swing detection unit 35 detects the swing angle of the holding member 11 by detecting the slit of the shielding plate 34.
  • the swing detection unit 35 and the shielding plate 34 may be configured to detect the origin that is the original position when swinging.
  • the swing detection unit 35 detects the origin of the swing of the holding member 11 by detecting the slit of the shielding plate 34.
  • the swing angle is detected by the encoder 321 of the stirring motor 32.
  • the transmission member 114 is fixed to the front surface of the rotating member 124 with screws.
  • a fitting groove into which the transmission member 114 is fitted is formed at the rear end of the holding member 11.
  • the transmission member 114 has an external shape complementary to the internal shape of the fitting groove of the holding member 11.
  • a hole through which the presser pipe 23 passes is formed at the center of the transmission member 114, and the transmission member 114 has a pair of protrusions 115 protruding on both sides of the hole.
  • the transmission member 114 is fixed to the rear surface of the holding member 11 by two screws 116 that are fitted in the fitting grooves of the holding member 11 and penetrate the protruding portion 115. As a result, when the pulley 333 rotates, the holding member 11 rotates via the rotating member 124 and the transmission member 114. Similar to the transmission member 114, a hole through which the presser pipe 23 passes is formed at the center of the shielding plate 34, the pulley 333, and the rotating member 124.
  • the injection device 100 includes a closing portion 16 that closes the flow path in the first tube 103 connected to the first syringe 91.
  • the closing portion 16 is provided on the guide portion 106 (FIG. 1) of the first tube 103.
  • FIG. 5 is a schematic perspective view of the closing portion 16 as viewed from the front.
  • the closing part 16 includes an actuator 161, a clamp member 162 driven by the actuator 161, and a closing detection part 169 that detects closing of the flow path in the first tube 103.
  • the actuator 161 has the same structure as the actuator 22 of the first drive unit 2 or the actuator 62 of the second drive unit 6.
  • the actuator 161 has a rod 168 (FIG. 7) that can move in the vertical direction.
  • the clamp member 162 has a substantially U-shaped protrusion 1621 that protrudes toward the rod 168 of the actuator 161. And the protrusion part 1621 is rotatably connected with respect to the rod 168 via the rod axis
  • the clamp member 162 has a shaft hole portion 1622. The clamp member 162 is rotatably connected to the guide portion 106 of the first tube 103 via a clamp shaft 165 inserted into the shaft hole portion 1622.
  • the closing detection unit 169 is, for example, an optical slit sensor. Further, a shielding member 163 protruding downward is fixed to the clamp member 162 with a screw. The closure detection unit 169 detects that the clamp member 162 has closed the flow path in the first tube 103 by detecting that the shield member 163 has shielded it.
  • a shaft hole is formed at the lower end of the case of the actuator 161.
  • the actuator 161 is rotatably connected to the front frame 15 via a case shaft 166 inserted into the shaft hole.
  • FIGS. 6 is a schematic plan view showing the clamp member 162 in the open state as viewed from the rear
  • FIG. 7 is a schematic plan view showing the clamp member 162 in the closed state as viewed from the rear.
  • the flow path in the first tube 103 inserted into the guide portion 106 is open.
  • the rod 168 (FIG. 7) is accommodated in the case of the actuator 161. That is, the rod 168 is in the lowered position that is completely lowered.
  • the clamp member 162 connected to the rod 168 via the rod shaft 164 is in an open position separated from the first tube 103.
  • the actuator 161 raises the rod 168 to the raised position shown in FIG.
  • the protrusion 1621 rises through the rod shaft 164. Therefore, the clamp member 162 rotates around the clamp shaft 165. As a result, the clamp member 162 protrudes into the guide portion 106 and crushes the first tube 103 in the guide portion 106. As a result, the contrast member flow path in the first tube 103 is closed by the clamp member 162.
  • the shielding member 163 fixed to the clamp member 162 also rotates toward the closure detection unit 169 about the clamp shaft 165. Accordingly, the closing detection unit 169 detects that the first tube 103 is closed by being shielded by the shielding member 163.
  • the actuator 161 is slightly rotated around the case shaft 166 toward the clamp shaft 165.
  • the actuator 161 When opening the closed first tube 103, the actuator 161 lowers the rod 168 to the lowered position shown in FIG. When the rod 168 is lowered, the protruding portion 1621 is lowered via the rod shaft 164. Therefore, the clamp member 162 rotates around the clamp shaft 165. As a result, the clamp member 162 is retracted from the guide portion 106, and the first tube 103 in the guide portion 106 returns to its original shape. As a result, the contrast agent flow path in the first tube 103 is opened.
  • the shielding member 163 also rotates in the direction away from the closure detection unit 169 about the clamp shaft 165. Thereby, shielding by the shielding member 163 is released.
  • the actuator 161 is slightly rotated around the case shaft 166 in a direction away from the clamp shaft 165.
  • the closing part 16 closes the flow path in the first tube 103 when the second chemical liquid is pushed out from the second syringe 92.
  • the injection device 100 includes a control unit 5 that controls the first drive unit 2, the second drive unit 6, the stirring unit 3, and the closing unit 16, and a memory unit 53 as a storage unit. Yes.
  • the control part 5 has the chemical
  • the control unit 5 is, for example, a CPU that is a one-chip microcomputer, and is disposed below the first drive unit 2, the second drive unit 6, and the stirring unit 3. And the control part 5 performs the process operation
  • the memory unit 53 includes a RAM (Random Access Memory) which is a system work memory for operating a main CPU (Central Processing Unit), a ROM (Read Only Memory) storing a program or system software, a hard disk drive, or the like. .
  • RAM Random Access Memory
  • the injection of the first chemical solution and the second chemical solution is automatically performed according to the injection protocol.
  • this injection protocol for example, an injection time, an injection speed, an injection amount, and an injection pressure limit value are set.
  • the display unit 13 displays the contents of the injection protocol such as the injection speed, and the operator can check the contents of the injection protocol.
  • the injection protocol, drug solution data, and the like are stored in the memory unit 53 in advance.
  • the operator can input data such as an injection speed and an injection amount into the control unit 5 by operating the input key 141 (FIG. 1) of the operation unit 14.
  • the operator may input data such as the injection time, the maximum injection pressure, and the tube type in addition to the above data via an input device provided separately.
  • the operator can also read the injection protocol and various data from an external storage medium.
  • the control unit 5 may calculate the injection conditions based on the input data and data stored in advance, and may determine the amount of chemical solution to be injected into the subject and the injection protocol.
  • the injection protocol can also be locked with a password so that it cannot be changed.
  • the operator Before injecting the chemical solution, the operator turns on the power of the injection device 100 and mounts the first syringe 91 and the second syringe 92 on the injection head 1.
  • the injection device 100 stands by in an injectable state. If necessary, the operator presses the stirring button 143 (FIG. 1) of the operation unit 14 to swing the first syringe 91. Thereafter, the operator presses the start button 142 (FIG. 1) of the operation unit 14 to start injecting the chemical solution.
  • the operator may turn on the power of the injection device 100 after mounting the syringe. Further, the operator may start the injection of the chemical liquid by pressing a hand switch or a foot switch instead of the operation unit 14. Further, the injection device 100 can be configured so that the injection of the chemical solution is stopped by pressing the foot switch again.
  • the operation unit 14 transmits a stirring signal to the control unit 5 (S101).
  • the control part 5 which received the stirring signal controls the stirring unit 3, and the stirring unit 3 rocks
  • the rotational motion from the stirring motor 32 is transmitted to the rotating member 124 via the transmission mechanism 33.
  • the holding member 11 swings together with the rotating member 124, and the first syringe 91 held by the holding member 11 swings.
  • the stirring unit 3 swings the holding member 11 around the axis of the first syringe 91 at a predetermined swing angle. That is, the control unit 5 determines the swing amount of the holding member 11 based on the detection signal from the swing detection unit 35. As a result, the holding member 11 is swung back and forth within a range of a predetermined angle from a horizontal direction with respect to a swing shaft positioned at the center of the rotating member 124.
  • the stirring time is 10 seconds to 300 seconds
  • the rotation speed is 10 rpm to 120 rpm.
  • the stirring operation is performed so as to repeat swinging in one direction and swinging in the opposite direction.
  • the agitation unit 3 swings the holding member 11 180 degrees in one direction so that the first syringe 91 faces downward. Then, the agitation unit 3 swings the holding member 11 180 degrees in the reverse direction so that the first syringe 91 returns to the original position (origin). Thereafter, the stirring unit 3 swings the holding member 11 180 degrees in the reverse direction so that the first syringe 91 faces downward.
  • the drug solution determination unit 51 refers to the injection protocol and determines whether or not physiological saline is being injected. If the drug solution determination unit 51 determines that the physiological saline is not injected (NO in S103), the contrast agent is injected to the subject because it is a contrast agent injection command (S104). That is, the control unit 5 drives the actuator 22 of the first drive unit 2. Then, the actuator 22 advances the presser 21 through the presser pipe 23. Thereby, the presser 21 advances the piston 914 toward the tip of the first syringe 91. As a result, the contrast medium in the first syringe 91 is injected into the subject via the first tube 103.
  • the control unit 5 controls the closing unit 16. And the closing part 16 closes the flow path of a contrast agent before pushing out the physiological saline. That is, the closing part 16 crushes the first tube 103 and closes the contrast agent flow path (S105). Specifically, the actuator 161 is driven, and the clamp member 162 crushes the first tube 103 in the guide portion 106. At the same time, the shielding member 163 shields the optical path of the closure detection unit 169.
  • the closing detection unit 169 of the closing unit 16 detects the closing of the flow channel (YES in S106), and transmits a closing signal to the control unit 5.
  • the control unit 5 that has received the closing signal drives the actuator 62 of the second drive unit 6. Then, the actuator 62 advances the presser 61 through the presser pipe 63. Thereby, the presser 61 advances the piston 924 toward the tip of the second syringe 92. As a result, the physiological saline in the second syringe 92 is injected into the subject through the second tube 104 (S107).
  • the control unit 5 controls the injection time using a timer (not shown) and monitors the injection state such as the injection pressure of the drug solution.
  • the control unit 5 displays the elapsed time from the start of injection on the display unit 13 by counting up. Further, the control unit 5 may cause the display unit 13 to display the time until the start of imaging on a countdown basis. Thereby, imaging can be started at an appropriate timing.
  • the control unit 5 injects physiological saline to flush the contrast agent after injecting the contrast agent.
  • the control unit 5 causes the end determination unit 54 to determine whether or not the pushing out of the physiological saline has ended.
  • the end determination unit 54 determines that the physiological saline has been pushed out. Specifically, based on a signal received from the potentiometer that detects the rotation angle of the encoder 64 in the actuator 62 or the motor in the actuator 62, the end determination unit 54 determines to stop driving the second drive unit 6. .
  • the end determination unit 54 determines that the injection of the physiological saline has ended.
  • the control unit 5 continues the injection of the physiological saline.
  • the closing part 16 opens the flow path of the contrast agent after the completion of the extrusion of the physiological saline.
  • the closing portion 16 opens the flow path when the end determination portion 54 determines that the extrusion has ended. That is, when the end determination unit 54 determines that the extrusion has ended (YSE in S108), the control unit 5 controls the closing unit 16. Then, the closing portion 16 retracts the clamp member 162 from the guide portion 106 of the first tube 103 to open the contrast agent flow path (S109).
  • the closing detection unit 169 of the closing unit 16 does not transmit a closing signal to the control unit 5. If the control unit 5 does not receive the closing signal within a predetermined time after the closing unit 16 closes the flow path (NO in S106), the control unit 5 notifies the warning notification unit 52 of the error.
  • the warning notification unit 52 displays a symbol or the like indicating an error on the display unit 13 (S110). This prompts the operator to check for channel closure.
  • the warning notification unit 52 may cause the sound output unit to output a sound indicating an error.
  • the operator can manually input the operation command of the second drive unit 6 via the operation unit 14.
  • the operator can advance the presser 61 to push out the physiological saline while pushing down the advance button of the operation unit 14.
  • the operation unit 14 transmits a forward signal of the presser 61 to the control unit 5 as an injection start signal.
  • the control unit 5 that has received the advance signal causes the chemical solution determination unit 51 to determine the chemical solution to be injected. And since the chemical
  • the control unit 5 controls the closing unit 16, and the closing unit 16 closes the flow path of the contrast agent before pushing out the physiological saline.
  • the closing detection unit 169 of the closing unit 16 detects the closing of the flow channel and transmits a closing signal to the control unit 5.
  • the control unit 5 that has received the closing signal drives the actuator 62 of the second drive unit 6.
  • the physiological saline in the second syringe 92 is injected through the second tube 104.
  • the control unit 5 causes the end determination unit 54 to determine whether or not the pushing out of the physiological saline has ended.
  • the end determination unit 54 determines that the pushing out of the physiological saline has ended when the input of the operation command via the operation unit 14 is stopped.
  • the control unit 5 controls the closing unit 16 to open the contrast agent flow path.
  • the control unit 5 controls the first drive unit 2 and the second drive unit 6. And if the stirring command of the stirring unit 3 is input in the state where the 1st drive part 2 or the 2nd drive part 6 is operating, the control part 5 will ignore a stirring command or the 2nd drive part 6 Stop operation. That is, when the operator erroneously depresses the stirring button 143 and inputs the stirring command while the first driving unit 2 or the second driving unit 6 is operating, the control unit 5 ignores the stirring command or 2 The operation of the drive unit 6 is stopped. This prevents the agitating unit 3 from swinging the first syringe 91 while the first drive unit 2 or the second drive unit 6 is operating.
  • the control unit 5 may notify the warning notification unit 52 of a warning when the operator erroneously presses the stirring button 143 and inputs a stirring command. Furthermore, the control unit 5 notifies the warning notification unit 52 of a warning when the operator accidentally depresses the forward button and inputs an operation command of the first drive unit 2 when the contrast agent flow path is closed. You may let them.
  • the control unit 5 stops the injection device 100. Further, when the operator erroneously presses the operation button of the operation unit 14 during the injection of the chemical solution, for example, when the advance button of the presser 21 is pressed during the injection of the physiological saline, the control unit 5 causes the injection device 100 to Stop. However, instead of the injection device 100 being stopped, when two types of buttons are pressed at the same time, or when an operation button is pressed during the injection of the chemical solution, the control unit 5 inputs a command using the buttons. May be ignored.
  • the injection device 100 includes a presser pipe 23 that is advanced or retracted by the first drive unit 2, and a limit detection unit 25 that detects a limit position of forward and backward movement of the presser pipe 23.
  • the injection device 100 includes a presser pipe 63 that is advanced or retracted by the second drive unit 6 and a limit detection unit 65 that detects the forward and backward limit positions of the presser pipe 63.
  • the limit detection unit 25 monitors the forward limit and the backward limit of the presser 21 by detecting the forward and backward limit positions of the presser pipe 23.
  • the limit detection unit 65 monitors the forward limit and the backward limit of the presser 61 by detecting the forward and backward limit positions of the presser pipe 63.
  • the control unit 5 stops the presser 21 from moving forward or backward.
  • the control unit 5 stops the presser 61 from moving forward or backward.
  • the limit detection unit 25 and the limit detection unit 65 have the same structure. Therefore, description of the limit detection unit 25 is omitted, and the limit detection unit 65 will be described with reference to FIGS. 10 and 11.
  • 10 shows the limit detector 65 viewed from the upper front side
  • FIG. 11 shows a cross section along the longitudinal direction of the limit detector 65 extending in the vertical direction. 10 and 11 show a state where the presser pipe 63 is advanced to the limit position.
  • the limit detection unit 65 includes a first limit detection unit 651 that detects a backward limit position, and a second limit detection unit 653 that detects a forward limit position.
  • the first limit detection unit 651 and the second limit detection unit 653 are optical slit sensors.
  • the presser pipe 63 is formed with a first light transmission portion 652 and a second light transmission portion 654 (FIG. 11).
  • the first light transmission part 652 and the second light transmission part 654 are holes that penetrate the presser pipe 63.
  • the second light transmission unit 654 detects the light transmitted through the second light transmission unit 654 by the second limit detection unit 653. It is set to be.
  • the position of the first light transmission unit 652 is set so that the first limit detection unit 651 detects the light transmitted through the first light transmission unit 652 when the presser pipe 63 reaches the retreat limit position. Has been.
  • the limit detection unit 65 transmits a detection signal to the control unit 5. Then, the control unit 5 that has received the detection signal controls the second drive unit 6. Thereby, the 2nd drive part 6 stops the advance of the presser 61.
  • the limit detection unit 65 transmits a detection signal to the control unit 5. Then, the control unit 5 that has received the detection signal controls the second drive unit 6. As a result, the second drive unit 6 stops the retreat of the presser 61.
  • the limit detection unit described in Patent Document 1 includes a front limit detection unit and a rear limit detection unit that are optical slit sensors.
  • the shielding board is being fixed to the rear-end part of a screw shaft, and if a presser advances to a limit, a front side limit detection part will be shielded by a shielding board. Further, the rear limit detection unit is shielded by the shielding plate when the presser moves back to the limit.
  • the screw shaft needs a rear end portion having a length corresponding to the distance between the front limit detection portion and the rear limit detection portion. As a result, the size of the injection device is increased.
  • the limit detection unit 65 according to the first embodiment the rear end portion of the screw shaft for detecting the forward limit and the backward limit becomes unnecessary. As a result, the injection device 100 can be further downsized.
  • the presser pipe 63 has a hollow portion 632 and a solid portion 634.
  • the first light transmission part 652 is formed in the hollow part 632
  • the second light transmission part 654 is formed in the solid part 634. That is, at least a part of the solid part 634 exists between the first light transmission part 652 and the second light transmission part 654. Thereby, even if the chemical solution enters the first light transmitting portion 652, the solid portion 634 prevents the intrusion into the injection head 1.
  • first light transmitting portion 652 and the second light transmitting portion 654 can be filled with a light transmitting resin or the like. However, if the first light transmitting portion 652 and the second light transmitting portion 654 are through holes extending in the direction of gravity, the chemical solution or the like that has entered the through holes can be discharged out of the apparatus by gravity.
  • the injection device 100 According to the injection device 100 according to the first embodiment, a space for mounting and driving the three-way cock is not required. Thereby, injection device 100 can be reduced in size, preventing destruction of microbubbles. Further, the closing part 16 opens the flow path of the first chemical liquid after the second chemical liquid is injected. Thereby, the stirring unit 3 can swing the first syringe 91 in a state where the closing portion 16 opens the flow path of the contrast agent. Furthermore, the limit detecting unit 65 according to the first embodiment does not require the rear end portion of the screw shaft for detecting the forward and backward limit positions, so that the injection device 100 can be further downsized.
  • the control unit 5 may control the actuator 22 of the first drive unit 2 not to be driven when the closure signal is received from the closure unit 16. Moreover, the control part 5 may control the 1st drive part 2 so that injection may not be started during stirring operation. In this case, the control unit 5 starts the injection of the chemical solution after the holding member 11 stops swinging. Therefore, when the injection start signal is received during the stirring operation, the control unit 5 drives the actuator 22 after the stirring operation is finished. Thereby, the first tube 103 is not moved by the swinging operation during the injection, and the catheter or the like can be prevented from being detached from the subject.
  • control unit 5 can cause the stirring unit 3 to automatically perform the stirring operation when starting the injection.
  • the control unit 5 that has received the injection start signal causes the stirring unit 3 to perform the stirring operation, and drives the actuator 22 after the stirring operation is completed.
  • the stirring operation can be automatically started when the separation of the chemical solution is detected.
  • the separation of the chemical solution can be detected by a turbidity detection unit or the like, and the control unit 5 starts the stirring operation when receiving the detection signal.
  • the operator can also set to perform a stirring operation automatically every predetermined time. If necessary, a stirring operation may be performed during the injection of the chemical solution.
  • FIG. 12 is a flowchart illustrating the closing of the flow path according to the second embodiment. Further, in the description of the second embodiment, differences from the first embodiment will be described, the same reference numerals will be given to the components described in the first embodiment, and description thereof will be omitted. Except where specifically described, the constituent elements having the same reference numerals perform substantially the same operations and functions, and the effects thereof are also substantially the same.
  • the injection device 100 includes a control unit 5 that controls the first drive unit 2, the second drive unit 6, the stirring unit 3, and the closing unit 16, and a memory unit 53 as a storage unit. ing.
  • the control part 5 has the chemical
  • the second embodiment differs from the first embodiment in that the contrast agent flow path is normally closed.
  • the injection device 100 stands by in an injectable state. Specifically, the operator depresses the check button of the operation unit 14 after arranging the first tube 103 on the guide unit 106. Accordingly, the control unit 5 that has received the signal from the operation unit 14 controls the closing unit 16. And the closing part 16 crushes the 1st tube 103, and closes the flow path of a contrast agent. In this state, the injection device 100 stands by. Thereafter, the operator presses the stirring button 143 (FIG. 1) of the operation unit 14 to swing the first syringe 91.
  • the operation unit 14 transmits a stirring signal to the control unit 5 (S201).
  • the closing portion 16 opens the flow path of the contrast medium when the stirring command of the stirring unit 3 is input. Specifically, the closing portion 16 retracts the clamp member 162 from the guide portion 106 of the first tube 103 to open the contrast agent flow path (S202).
  • the closing detection unit 169 of the closing unit 16 continues to transmit a closing signal to the control unit 5.
  • the control unit 5 determines that the opening of the flow channel is not detected when the closing signal is received even after a predetermined time has elapsed since the closing unit 16 opened the flow channel (NO in S203).
  • the warning notification unit 52 is controlled.
  • reporting part 52 displays the symbol etc. which show an error on the display part 13 (S204). This prompts the operator to check for channel closure. Thereafter, the control unit 5 does not perform the stirring operation until the stirring signal is input again.
  • the closing detection unit 169 of the closing unit 16 does not transmit a closing signal to the control unit 5.
  • the control unit 5 stops receiving the closing signal, it determines that the opening of the flow path has been detected (YES in S203). And the control part 5 controls the stirring unit 3, and the stirring unit 3 rocks
  • control unit 5 causes the end determination unit 54 to determine whether or not the swinging of the first syringe 91 has ended. Specifically, the end determination unit 54 determines stop of the stirring motor 32 based on a signal received from the encoder 321 of the stirring motor 32 or the potentiometer in the stirring unit 3. When the stirring motor 32 is stopped, the end determination unit 54 determines that the swinging of the first syringe 91 has ended. On the other hand, when the end determination unit 54 determines that the swing has not ended (NO in S206), the control unit 5 continues the swing of the first syringe 91.
  • the control unit 5 controls the closing unit 16. Then, the closing unit 16 crushes the first tube 103 to close the contrast agent flow path (S207).
  • the closing detection unit 169 of the closing unit 16 detects the closing of the flow channel and transmits a closing signal to the control unit 5.
  • the operation unit 14 transmits an injection start signal to the control unit 5.
  • pouring start signal makes the chemical
  • the drug solution determination unit 51 refers to the injection protocol and determines whether or not the contrast agent is injected.
  • the drug solution determination unit 51 determines that the contrast agent is not injected (NO in S208)
  • the physiological saline is injected into the subject because of the physiological saline injection command (S212).
  • the flow path of the contrast medium since the flow path of the contrast medium is normally closed, it is not necessary to close the flow path before injecting physiological saline. Therefore, it is not necessary to check the closing of the flow path before the injection of physiological saline.
  • the control unit 5 drives the actuator 62 of the second drive unit 6. Then, the actuator 62 advances the presser 61 through the presser pipe 63. Thereby, the presser 61 advances the piston 924 toward the tip of the second syringe 92. As a result, the physiological saline in the second syringe 92 is injected into the subject. Thereafter, the control unit 5 stands by until the contrast agent is injected. In the second embodiment, since the contrast agent channel is normally closed, it is not necessary to open the channel after injection of physiological saline.
  • the control unit 5 controls the closing unit 16. Then, the closing portion 16 retreats the clamp member 162 from the guide portion 106 of the first tube 103 to open the contrast agent flow path (S209).
  • the closing detection unit 169 of the closing unit 16 continues to transmit a closing signal to the control unit 5.
  • the control unit 5 determines that the opening of the flow path has not been detected when the closing signal is received even after a predetermined time has elapsed since the closing part 16 was opened (NO in S210). ),
  • the warning notification unit 52 is notified of the warning (S213). This prompts the operator to check the opening of the flow path. Thereafter, the controller 5 does not perform the injection operation until the injection start signal is input again.
  • the closing detection unit 169 of the closing unit 16 does not transmit a closing signal to the control unit 5.
  • the control unit 5 drives the actuator 22 of the first drive unit 2.
  • the actuator 22 advances the presser 21 through the presser pipe 23.
  • the presser 21 advances the piston 914 toward the tip of the first syringe 91.
  • the contrast medium in the first syringe 91 is injected into the subject (S211).
  • the control unit 5 causes the end determination unit 54 to determine whether or not the extrusion of the contrast agent has ended.
  • the end determination unit 54 determines that the extrusion of the contrast agent has ended. Specifically, based on a signal received from the potentiometer that detects the rotation angle of the encoder 24 in the actuator 22 or the motor in the actuator 22, the end determination unit 54 determines whether to stop driving the first drive unit 2. .
  • the end determination unit 54 determines that the injection of the contrast agent has ended.
  • the closing unit 16 crushes the first tube 103 in the same manner as described above to close the contrast agent flow path.
  • the injection device 100 According to the injection device 100 according to the second embodiment, a space for mounting and driving the three-way stopcock becomes unnecessary. Thereby, injection device 100 can be reduced in size, preventing destruction of microbubbles. Further, the closing part 16 opens the flow path of the first chemical liquid after the second chemical liquid is injected. Thereby, the stirring unit 3 can swing the first syringe 91 in a state where the closing portion 16 opens the first tube 103. In addition, since the contrast agent channel is normally closed, it is not necessary to close the channel before injecting physiological saline.
  • FIG. 13 is a schematic block diagram of an injection apparatus 300 according to the third embodiment.
  • FIG. 14 is a flowchart for explaining the automatic stirring mode.
  • the same reference numerals will be given to the components described in the first and second embodiments, and the description thereof will be omitted.
  • the constituent elements having the same reference numerals perform substantially the same operations and functions, and the effects thereof are also substantially the same.
  • the injection device 300 includes a control unit 5 that controls the first drive unit 302, the second drive unit 306, the stirring unit 3 and the closing unit 16, and a memory unit 53 as a storage unit. Yes.
  • the control unit 5 has a timer (not shown).
  • the control unit 5 is a CPU which is a one-chip microcomputer, for example, and executes the processing operation of the entire injection apparatus 300 according to a program stored in the memory unit 53 in advance.
  • the memory unit 53 includes a RAM, a ROM, or a hard disk drive.
  • the first drive unit 302 includes a motor (not shown) (for example, a DC motor), and pushes out the first drug solution (contrast agent) from the first syringe 91.
  • the 1st drive part 302 differs from 1st and 2nd embodiment by the point provided with the 1st detection part 329 which detects the injection pressure of a 1st chemical
  • the first detector 329 measures the current value of the current supplied to the motor, and obtains the injection pressure based on the measured current value.
  • the current value measured by the first detection unit 329 may be transmitted to the control unit 5, and the control unit 5 may obtain the injection pressure based on the received current value.
  • the control unit 5 controls the first driving unit 302 so as not to exceed a predetermined maximum injection pressure during the injection of the first chemical solution.
  • the first detection unit 329 may be a load cell.
  • the second drive unit 306 includes a motor (not shown) (for example, a DC motor), and pushes out the second drug solution (saline) from the second syringe 92.
  • the second drive unit 306 is different from the first and second embodiments in that it includes a second detection unit 369 that detects the injection pressure of the second chemical solution.
  • the second detector 369 measures the current value of the current supplied to the motor and obtains the injection pressure based on the measured current value.
  • the current value measured by the second detection unit 369 may be transmitted to the control unit 5, and the control unit 5 may obtain the injection pressure based on the received current value.
  • the control unit 5 controls the second driving unit 306 so as not to exceed a predetermined maximum injection pressure during the injection of the second chemical solution.
  • the second detection unit 369 may be a load cell.
  • the stirring unit 3 includes a stirring motor 32 and swings the first syringe 91.
  • the stirring unit 3 has a swing detection unit 35 that detects a swing angle.
  • the closing unit 16 closes the flow path in the first tube 103 connected to the first syringe 91.
  • the closing part 16 includes a closing detection part 169 that detects the closing of the flow path in the first tube 103.
  • the injection device 300 of the third embodiment has an automatic stirring mode in which the stirring operation is automatically repeated every predetermined time (for example, 30 seconds to 60 seconds). This automatic stirring mode will be described with reference to FIGS. 13 and 14.
  • the operator turns on the power of the injection device 300.
  • the closing portion 16 opens the flow path.
  • the stirring unit 3 moves the holding member 11 to the original position.
  • the operator mounts the first syringe 91 and the second syringe 92 on the injection head 1.
  • the operator presses the forward button 145 ⁇ / b> A of the operation unit 14.
  • the presser 21 of the first drive unit 302 moves forward and comes into contact with the rear end of the piston 914 of the first syringe 91.
  • the operator presses the forward button 145B to bring the presser 61 of the second drive unit 306 into contact with the rear end of the piston 924 of the second syringe 92.
  • the operator may previously move the presser 21 and the presser 61 to a predetermined position by pressing the forward button 145A or the backward button 146A, or the forward button 145B or the backward button 146B.
  • the stirring unit 3 swings the holding member 11 180 degrees in the first direction so that the first syringe 91 faces downward. Then, after stopping for a predetermined time (for example, 2 seconds), the agitation unit 3 moves the holding member 11 in the direction opposite to the first direction so that the first syringe 91 passes through the original position (origin) and faces downward. Swing 360 degrees in the second direction. Subsequently, after stopping for a predetermined time (for example, 2 seconds), the stirring unit 3 swings the holding member 11 in the first direction by 180 degrees so that the first syringe 91 returns to the original position.
  • a predetermined time for example, 2 seconds
  • the control section 5 causes the warning notification section 52 (FIG. 8) to notify the warning.
  • the control unit 5 cancels the automatic stirring mode.
  • the control unit 5 refers to the information from the timer and automatically repeats the same stirring operation as the initial stirring operation every predetermined time (S303). Alternatively, a stirring operation different from the initial stirring operation, for example, an operation of swinging 180 degrees in the first direction and then swinging 180 degrees in the second direction may be repeated.
  • the stirring button 143 blinks to display the automatic stirring mode.
  • the operator operates the input key 141 of the operation unit 14 to input the injection speed and the injection amount to the control unit 5.
  • the display unit 13 displays the injection speed and the injection amount, and the operator can check the contents.
  • the input item is changed every time the selection button 147 is pressed.
  • the control unit 5 determines whether or not to stop the automatic stirring mode (S304). Specifically, when the condition for mode stop is satisfied (YES in S304), the control unit 5 stops the automatic stirring mode (S305).
  • the mode stop condition is, for example, pressing of the start button 142 of the operation unit 14, pressing of the forward buttons 145A and 145B, pressing of the backward buttons 146A and 146B, or reception of a closing signal.
  • the control unit 5 that has received the injection start signal stops the automatic stirring mode halfway and injects the chemical solution.
  • the control unit 5 stops the automatic stirring mode even in the middle of swinging (for example, the state where the first syringe 91 faces downward). This is because importance is placed on the start timing of injection of the chemical solution.
  • the automatic stirring mode may alternatively be stopped after the end of rocking.
  • the automatic stirring mode may be stopped after the first syringe 91 is swung until it faces upward. By stopping the automatic stirring mode, swinging while the first drive unit 302 or the second drive unit 306 is driven can be prevented.
  • the control unit 5 resumes the automatic stirring mode (S303).
  • the condition for restarting the mode is, for example, completion of injection of the second chemical solution. That is, when the end determination unit 54 (FIG. 8) determines that the injection of the second chemical liquid has ended, the control unit 5 resumes the automatic stirring mode. At this time, if a predetermined time in the automatic stirring mode has elapsed during the injection of the chemical solution, the stirring unit 3 swings simultaneously with the restart.
  • the mode restart condition is not satisfied (NO in S306), the control unit 5 continues to stop the automatic stirring mode.
  • the control unit 5 determines whether or not to cancel the automatic stirring mode (S307). Specifically, when the condition for canceling the mode is satisfied (YES in S307), the control unit 5 cancels the automatic stirring mode and ends the automatic stirring mode. When the automatic stirring mode ends, the stirring button 143 is turned off.
  • the condition for releasing the mode is, for example, pressing down of the auto return button 149 of the operation unit 14, completion of injection of the first chemical liquid or the second chemical liquid, pressing down of the backward button 146A, pressing down of the stirring button 143, or notification of a warning. is there.
  • the control unit 5 continues the automatic stirring mode (S303).
  • the second drive unit 306 moves the presser 61 back to a predetermined position via the presser pipe 63.
  • the control unit 5 cancels the automatic stirring mode after swinging until the first syringe 91 faces upward. Thereby, repetition of stirring operation stops.
  • the control unit 5 may cancel the automatic stirring mode in the middle of swinging (for example, the state where the first syringe 91 faces downward). The operator can restart the automatic stirring mode by pressing the stirring button 143.
  • the standby state when the operator presses the stop button 144 of the operation unit 14, the standby state is released. Further, when the operator presses the stop button 144 of the operation unit 14 during the injection of the chemical liquid, the injection of the chemical liquid is stopped. However, when the first chemical solution remains in these situations, stirring is necessary, so the automatic stirring mode is not released. When the operator presses the stop button 144 in the state of automatic stirring other than the standby state and during the injection of the chemical solution, the automatic stirring mode may be canceled.
  • control unit 5 may cancel the automatic stirring mode when the holding member 11 is swung by an external force.
  • control unit 5 cancels the automatic agitation mode when the swing detection unit 35 (FIG. 3) detects swing of a predetermined angle (for example, 90 degrees) other than during swing.
  • the operator may turn on the power of the injection device 300 after mounting each syringe. Further, the operator may start the automatic stirring mode after pressing the standby button 148.
  • injection device 300 According to the injection device 300 according to the third embodiment, a space for mounting and driving a three-way cock is not required. Thereby, injection device 300 can be reduced in size, preventing destruction of microbubbles. Further, since the stirring is automatically repeated, it is not necessary for the operator to press the stirring button 143 each time. Thereby, while being able to reduce an operator's operation
  • the control unit 5 may control the injection pressure of the first chemical solution or the second chemical solution to be lower than the limit injection pressure at which the microbubbles collapse.
  • the control unit 5 acquires the limit injection pressure stored in advance from the memory unit 53.
  • the control unit 5 controls the first driving unit 302 or the second driving unit 306 so as not to reach the limit injection pressure.
  • the control unit 5 may acquire the limit injection pressure from a data carrier such as an RFID or a barcode disposed in the first syringe 91 or the second syringe 92.
  • the controller 5 can read the information recorded from the data carrier via the injection head 1.
  • the limit injection pressure can be obtained by experiments.
  • the memory unit 53 may store a plurality of limit injection pressures set for each thickness of a needle punctured by the subject. This critical injection pressure can be set to increase as the needle becomes thicker. For example, the limit injection pressure for a 21G needle is set higher than a 22G needle and lower than a 20G needle.
  • control unit 5 controls the second driving unit 306 so as to stop the first chemical solution in the third tube 105 by pushing out the first chemical solution after the first chemical solution is pushed out by the second chemical solution. May be. That is, the control unit 5 may control the second drive unit 306 so as to move the contrast agent to a position close to the catheter after the injection of the contrast agent. In this case, the control unit 5 acquires the injection amount of the second chemical solution corresponding to the third tube 105 from the memory unit 53. Then, the control unit 5 causes the second driving unit 306 to inject the second injection of the acquired injection amount so that the first chemical stops at a predetermined position in the third tube 105.
  • the control unit 5 may determine the necessary amount of physiological saline injected according to the length (type) of the third tube 105.
  • pouring can be reduced, and the fall of an image quality can be suppressed.
  • the contrast agent can be pushed and advanced to an appropriate position.
  • an ultrasonic motor can be used for each motor.
  • the holding portion 12 can be swung similarly to the holding member 11.
  • the injection devices 100 and 300 can also be used with other medical imaging devices other than the ultrasonic diagnostic device.
  • medical imaging apparatuses include an MRI (Magnetic Resonance Imaging) apparatus, a CT (Computed Tomography) apparatus, an angio imaging apparatus, a PET (Positron Emission Tomography) apparatus, a SPECT (Single Photon Emission Computed Tomography) apparatus, and a CT.
  • MRI Magnetic Resonance Imaging
  • CT Computed Tomography
  • an angio imaging apparatus e.g., a PET (Positron Emission Tomography) apparatus
  • SPECT Single Photon Emission Computed Tomography
  • CT Single Photon Emission Computed Tomography
  • CT Single Photon Emission Computed Tomography
  • the injection devices 100 and 300 can be connected to the imaging device by wire or wirelessly.
  • various types of data are transmitted and received between the imaging device and the injection devices 100 and 300 when the chemical solution is injected and when an image is taken.
  • the imaging conditions may be set or displayed on the injection devices 100 and 300, and the injection conditions may be set or displayed on the imaging device.
  • the injection devices 100 and 300 send information on injection results (injection history and agitation operation history) via a network via RIS (Radiology Information System), PACS (Picture Architecture and Communication System), and HIS (Hospital Information System) It can also be transmitted and stored in an external storage device.
  • the history of the stirring operation may include data such as the name of the chemical solution, the stirring time, and the rocking speed.
  • the injection history may include data such as the name of the chemical solution, the injection speed, the injection amount, the injection time, and the maximum injection pressure.
  • information about an imaging result for example, examination ID, imaging time, an imaging part, etc.
  • the injection devices 100 and 300 can store the injection result associated with the imaging result in the external storage device.
  • the operator can also send and receive information such as the injection protocol to the injection device using the terminal of the hospital information system.
  • the syringe can be provided with a data carrier such as an RFID or a barcode.
  • a data carrier such as an RFID or a barcode.
  • information on the filled chemical solution is recorded.
  • the injection devices 100 and 300 can read the information recorded from the data carrier via the injection head 1.
  • the injection devices 100 and 300 can display information on the read chemical solution on the display unit 13 of the injection head 1.
  • medical solution there exist a product name, a chemical
  • the control unit 5 acquires the filling time of the chemical solution from the memory unit 53, refers to the information from the timer, and gives an error to the warning notification unit 52 when a predetermined time (for example, 1 to 2 hours) has elapsed from the filling time. May be notified.
  • This filling date and time can be input to the memory unit 53 from the operation unit 14 by the operator. Accordingly, it is possible to prompt the operator to inject the chemical before the microbubbles collapse due to the lapse of the usable time.
  • the control unit 5 may automatically store the mounting time of the syringe in the memory unit 53 and notify the warning notification unit 52 of an error when a predetermined time has elapsed from the mounting time.
  • the 1st drive part which extrudes the said 1st chemical
  • the closing part which closes the flow path in the tube connected to the said 1st syringe,
  • the said 1st A control method for an injection device comprising a stirring unit for swinging a syringe, wherein the first syringe is swung by the stirring unit in a state where the closing portion opens the flow path.
  • a drive unit that pushes out the chemical solution from a syringe filled with a chemical solution, a presser pipe that is advanced or retracted by the drive unit, and a limit detection unit that detects the forward and backward limit positions of the presser pipe
  • the presser pipe is further provided with a first light transmission part and a second light transmission part, and the positions of the first light transmission part and the second light transmission part are at the forward limit position.
  • the limit detection unit detects the light transmitted through the first light transmission unit when it reaches, and the limit detection unit detects the light transmitted through the second light transmission unit when it reaches the retreat limit position.
  • An infusion device that is set to detect.
  • a control method for an injection apparatus comprising: a first drive unit that pushes out the first chemical solution from a first syringe filled with a first chemical solution; and a stirring unit that rocks the first syringe, A control method in which the stirring unit automatically repeats the stirring operation every predetermined time.
  • a first drive unit that pushes out the first chemical solution from the first syringe filled with the first chemical solution, and a stirring unit that automatically repeats the stirring operation of swinging the first syringe every predetermined time. Injection device.
  • pouring apparatus provided with the drive part which extrudes the said chemical
  • fluctuates the said syringe, and the said injection pressure are predetermined
  • a control unit that drives the driving unit so as not to exceed the pressure, and the predetermined pressure is set to a pressure that does not cause the microbubbles to collapse.

Abstract

La présente invention concerne un injecteur 100 étant pourvu : d'une première section d'entraînement 2 pour pousser un premier liquide médical hors d'une première seringue 91 remplie du premier liquide médical ; d'une section de fermeture 16 pour fermer un passage d'écoulement à l'intérieur d'un tube 103 relié à la première seringue 91 ; et d'une unité d'agitation 3 pour faire osciller la première seringue 91 tandis que la section de fermeture 16 ferme le passage d'écoulement.
PCT/JP2017/009507 2016-04-14 2017-03-09 Injecteur WO2017179345A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2018511931A JP6912068B2 (ja) 2016-04-14 2017-03-09 注入装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-080957 2016-04-14
JP2016080957 2016-04-14

Publications (1)

Publication Number Publication Date
WO2017179345A1 true WO2017179345A1 (fr) 2017-10-19

Family

ID=60041603

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/009507 WO2017179345A1 (fr) 2016-04-14 2017-03-09 Injecteur

Country Status (2)

Country Link
JP (1) JP6912068B2 (fr)
WO (1) WO2017179345A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010527272A (ja) * 2007-05-16 2010-08-12 スミス・メディカル・エイエスディ・インコーポレーテッド 薬液投薬システムにおける使用のためのポンプモジュール
WO2013051116A1 (fr) * 2011-10-05 2013-04-11 スーガン株式会社 Procédé d'amorçage
WO2013153812A1 (fr) * 2012-04-12 2013-10-17 株式会社根本杏林堂 Dispositif d'injection agitateur
JP2015142632A (ja) * 2014-01-31 2015-08-06 株式会社根本杏林堂 薬液注入装置およびその制御方法
WO2015141202A1 (fr) * 2014-03-17 2015-09-24 株式会社根本杏林堂 Dispositif d'injection et dispositif de commande pour dispositif d'injection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010527272A (ja) * 2007-05-16 2010-08-12 スミス・メディカル・エイエスディ・インコーポレーテッド 薬液投薬システムにおける使用のためのポンプモジュール
WO2013051116A1 (fr) * 2011-10-05 2013-04-11 スーガン株式会社 Procédé d'amorçage
WO2013153812A1 (fr) * 2012-04-12 2013-10-17 株式会社根本杏林堂 Dispositif d'injection agitateur
JP2015142632A (ja) * 2014-01-31 2015-08-06 株式会社根本杏林堂 薬液注入装置およびその制御方法
WO2015141202A1 (fr) * 2014-03-17 2015-09-24 株式会社根本杏林堂 Dispositif d'injection et dispositif de commande pour dispositif d'injection

Also Published As

Publication number Publication date
JP6912068B2 (ja) 2021-07-28
JPWO2017179345A1 (ja) 2019-02-28

Similar Documents

Publication Publication Date Title
JP6817644B2 (ja) 注入装置及び注入装置の制御装置
US8348896B2 (en) Patency check with pressure monitoring
EP2222357B1 (fr) Injecteur électrique à rétraction de vérin
US20060151049A1 (en) Chemical liquid injection system detecting attachment and detachment of chemical liquid syringe to and from chemical liquid injection device
JP5227791B2 (ja) 薬液注入装置
CN106061527B (zh) 注入装置和后端检测装置
JP5597138B2 (ja) 流量評価を有するパワーインゼクタ
US20160263324A1 (en) Portable medicine injection device
EP1829576A1 (fr) Dispositif d'injection de liquide chimique
KR20170139012A (ko) 휴대용 약물 주입 디바이스
JPWO2007114447A1 (ja) 薬液注入装置
JP4455865B2 (ja) 透視撮像システム
EP1688157A1 (fr) Dispositif de perfusion de medicament
WO2017179345A1 (fr) Injecteur
JP2011152354A (ja) 薬液注入システム
JP5468456B2 (ja) 薬液注入装置
JP6316618B2 (ja) 注入装置及びアダプタ検出装置
JP5586310B2 (ja) 薬液注入装置
JP4481628B2 (ja) 脱落検出装置
JP4280550B2 (ja) 空気検出装置
JP2009039310A (ja) 薬液充填装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2018511931

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17782163

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 17782163

Country of ref document: EP

Kind code of ref document: A1